Hepatic Steatosis

Definition

Excessive fat accumulation in liver hepatocytes exceeding 5% of liver weight, classified as non-alcoholic fatty liver disease (NAFLD) or alcoholic fatty liver disease depending on alcohol consumption.

How it works

Hepatic steatosis develops through increased hepatic lipid synthesis driven by excess carbohydrates, particularly fructose and refined sugars, combined with insulin resistance and obesity. Alcohol consumption further impairs lipid metabolism and promotes inflammation. Simple steatosis can progress to non-alcoholic steatohepatitis (NASH) with hepatic inflammation, fibrosis, and ultimately cirrhosis if untreated. The condition increases risk of hepatocellular carcinoma and metabolic complications. Weight loss of 5-10% through caloric deficit and increased physical activity significantly improves liver histology. Dietary restriction of refined carbohydrates and added sugars is essential.

Role

Indicates impaired hepatic lipid metabolism requiring weight loss and dietary modification to prevent progressive liver damage.

Examples

• High fructose corn syrup consumption
• Obesity with insulin resistance
• Excessive alcohol intake
• Sedentary lifestyle with high refined carbohydrate diet

Recommendations

Achieve 5-10% weight loss through moderate caloric deficit combined with increased physical activity. Restrict refined carbohydrates and added sugars while increasing whole grains, vegetables, and lean proteins. Limit alcohol consumption and consider supplementation with vitamin E if NASH is confirmed.

Key takeaway

Hepatic steatosis improvement requires sustained weight loss, refined carbohydrate restriction, and increased physical activity to prevent progression to cirrhosis.

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